Automatic brake for vehicles



(No Model.)

?.Sheets-Sheet '1. A. F., H. 0.1.81; G. MOHREN-WEISER.

IAUTOMATIG BRAKE POR VEHICLES.

Paxnted Jan. 12.1897.

10.575,003. a Patenteduan.12,1897.'

(No Model.)

, one of the inner rings or wheels.

UNITED STATES PATENT OEETCE.

AUGUST E. MOHRENVEISER, HENRY O. MOHRENWEISER, AND GUSTAV MOHRENVVEISER,OF HENDERSON, MINNESOTA.

AUTOMATIC BRAKE FOR VEHICLES.

SPECIFICATION forming part ot Letters Patent No. 575,003,dated January12, 1897.

Application tiled February 24, 1896. Serial No. 580,442. (No model.)

To all whom it may concern,.-

Be it known that we, AUGUST F. MOHEEN- wEIsEE, HENRY C. MoHRENwEIsEaandGUs- TAV MoHEENwEIsER, citizens of the United States, residing atHenderson, in the county of Sibley and State of Minnesota, have inventeda new and useful Automatic Brake for Vehicles, of which the following isa speciiication.

The invention relates to improvements in automatic brakes for vehicles.

The object of the present invention is to improve the construction ofautomatic vehicle-brakes and to provide a simple, inexpensive, andefiicient one adapted to be applied to any ordinary running-gear withoutnecessitating` any material change in the construction thereof andcapable of checking the forward movement of a vehicle in descending ahill or the like.

A further object of the invention is to provide an automatic brake whichwhile being capable of being readily applied when a vehicle movesforward on the draft-animals will also permit a vehicle to be freelybacked.

The invention consists in the construction and novel combination andarrangement of parts hereinafter fully described, illustrated in theaccompanying drawings, and pointed out in the claims hereto appended.

In the drawings, Figure l is a perspective view of a running-gearprovided with an automatic brake constructed in accordance with thisinvention. Fig. 2 is a longitudinal sectional view of the same. Fig. 3is a detail perspective view of one of the band-brake rings or wheels.Fig. 4. is a similar view of Fig. 5 is a detail perspective view of theclip for engaging the cable. Fig. 6 is a detail perspective view of theoperating-lever. Figs. 7 and 8 are' detail sectional views illustratingthe construction of the clutch.

Like numerals of reference designate corresponding parts in all thefigures of the drawings.

l designates a transverse rock-shaft jonrnaled in suitable bearings onthe rear face of the rear bolster 2 of a running-gear and provided witha central depending loop 3, form ing an arm and extending under the rearend of the reach 4 and connected, by means hereinafter described, withthe front of the pole and adapted to be operated by a neck-yoke. Theends of the rock-shaft are provided with arms 5 and 6, arranged in pairsand connected with band-brakes 7, located at the ends of the rear aXle.The arm 5 is straight and forms a continuation of the rock-shaft, andthe other arm 6 is offset laterally and angularly bent, and has itsouter portion arranged substantially parallel with the arm 5.

Each band-brake is connected by a clutch with the adjacent hind wheeland consists of a band S, having its terminals connected with the arms 5and 6, and a grooved ring or wheel 9. The periphery of the ring) isgrooved for the reception of the band 8, and the latter frictionallyengages the ring or wheel when the rock-shaft is partially rotated.lVhen the rock-shaft is operated by means hereinafter described, thecentral loop, which forms lan arm, swings downward, and the arm G iscarried rearward, the other arm holding the terminal of the band towhich it is connected substantiall y stationary. The rearward movementof the arm 6 tightens the band and causes the same to engagefrictionally the ring or wheel to check the forward rotation of the hindwheel.

The clutch which connects the ring or band 9 with the hind wheelconsists of an inner ring or wheel lO, provided at its periphery, whichis grooved or rabbeted for the reception of the ring or wheel 9, withpivotallymounted outwardly-swinging pawls l1,adapt ed to engage teethl2, which are arranged on the inner periphery of the ring or wheel 9.The pawls, when at the bottoni of the inner ring or wheel, fall bygravity in position for engaging the teeth of the outer ring or wheel 9,and the ratchet-teeth 12, which are preferably formed by recessing thering or wheel 9, are arranged to be engaged by the pawls when the hindwheel rotates forwardly, but permits the hind wheel to rotate rearwardlyfreely to enable a vehicle to be readily backed without applying thebrake.

The inner clutch wheel or ring, which is mounted on the hub of the hindwheel, is rigidly connected with the same by means of a series of clipsconsisting of hook-shaped bolts which embrace the adjacent spokes,andwear- IOC) plates 1-'11 are interposed between the spokes and the outerring or wheel 0 to prevent the parts from being worn. These wear-platesare perforated for the reception of the shanks of the lioolebolts whichattach them to the hind wheel. v

The depending` looparm 3 of the rock-shaft is connected by a clip l5with the rear end of a cable 10, which extends longitudinally of therunning-gear to the front end of the pole or tongue and is connectedwith the operatinglever 17. The operating-lever 17 consists of two sidesembracing the tongue and fulcrulned intermediate of their ends. Itextends above and below the tongue and is provided at its lower end withan eye for the reception of the front terminal of the cable 10. Theupper portion or arm of the operatinglever extends above the tongue andis adapted to be engaged bya liecleyolie, whereby when the vehicle movesforward on the draft-ant mals the upper portion of the operatingleverwill be carried rearward, thereby applying the brake and checking thevehicle.

The clip l5 consists of a loop or frame coinposed of upper and lowersides arranged above and below the cable and clamping the same, and theupper side is provided with an upwardly-extending bend 1S, receiving thelooparm of the rock-shaft. rlhe sides of the clip are provided at theirfront ends with ears 20, pivoted together, and the rear terminals of thesides are detachably secured together by means of bolts, which cause thesides to clamp the cable securely. By this construction the brake may bereadily adjusted to secure the desired operation of the bandbrakes.

The cable is supported at a point intermediate of the ends of the reachby a depending hanger 2l, consisting of a stem or shank and an eye orloop arranged at the lower end thereof and receiving the cable. Therunninggear is provided beneath its front axle with a pair of pulleys22, arranged in a suitable block or casing and disposed at oppositesides of the cable and enabling the runninggear to be turned or crampedwithout interfering' with the operation of the brake.

It will be seen that the automatic brake is exceedingly simple andinexpensive in construction, that it is positive and reliable inoperation, and that it is capable of applying the band-brakes when avehicle moves forward on the draft-animals in descending an incline, andthat it will permit a vehicle to be readily backed .without applyingthem.

It will also be apparent that the automatic brake may be readily appliedto any ordinary runninggear without altering the construction thereof.

Changes in the forni, proportion, and minor details of construction maybe resorted to without departing from the spirit or sacrificing an)T ofthe advantages of this invention.

lVhat we claim is l. In a brake, the combination of a transverserock-shaft designed to be mounted on the running-gear and provided witha pair of arms disposed longitudinally of the rock-shaft and arrangedsubstantially parallel, and a bandbrake provided with a band and havingthe terminals thereof connected to the arms of the rockshaft, wherebywhen the latter is rotated the band will be operated, substantially asdescribed.

2. In a brake, the combination with a runnin g-gear, of a transverserock-shaft provided with a pair of arms disposed longitudinally of theshaft and arranged substantially parallel, an outer ring or wheelprovided at its inner periphery with teeth, an inner ring or wheelmounted on the adjacent wheel of the running-gear, receiving the outerwheel or ring and provided at its periphery with pawls arranged toengage the said teeth, a band arranged on the outer ring or wheel andhaving its terminals connected with the arms of the iocleshaft, and theclips secured to the inner ring or wheel and engaging the spokes of theadjacent wheel of the running-gear, substantially as and for the purposedescribed.

In a brake, the combination with a running-gear, of a transverserock-shaft journaled on the rear bolster and provided with acentrally-arranged depending loop extending beneath the ratchet, saidrock-shaft being provided at its ends with substantially parallel armsdisposed longitudinally of the shaft and arranged adjacent to the hindwheels, an operating-lever mounted on the front of the tongue, a cableextending from the lever to the loop of the rock-shaft, a clipadjustably connecting the cable to the loop of the rock-shaft, a pair ofpulleys located beneath the front axle and arranged at opposite sides ofthe cable, and band-brakes connected with the hind wheels and having theterminals of the bands secured to the arms of the roek-shaft,substantially as described.

4. In a device of the class described, the combination of a looparm, acable, and a clip composed of two sides provided at one end of the clipwith pivotally-connected ears, and detachabl y connected at the otherend of the cli p and adapted to clamp the cable, the upper section beingprovided with a curve or band receiving the loop, substantially asdescribed.

ln testimony that we claim the foregoing as our own we have heretoaffixed our signatures in the presence of two witnesses.

AUGUST F. MOIIRENWEISER.

HENRY C. MOHRENWEISER.

GUSTAV MOHRENWEISER.

Witnesses:

PETER MCGRANN, FnANcis E. JIGGAP..

IOO

lor;

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